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对遗传算法在结构损伤诊断中的应用进行了分析。以单元刚度折减系数作为待识别参数,用频率误差和振型误差函数构建目标函数和适应度函数,运用遗传算法对折减系数进行计算,识别出结构损伤的位置和程度。实例分析表明了该方法的有效性和实用性。
The application of genetic algorithm in structural damage diagnosis is analyzed. The unit rigidity reduction coefficient is taken as the parameter to be identified. The objective function and fitness function are constructed by frequency error and mode shape error function. The reduction coefficient is calculated by using genetic algorithm, and the position and degree of structural damage are identified. The case study shows the effectiveness and practicability of this method.